Castrating-tool.



No. 672,997. Patented Apr. 30, won" a. w. WOOTAN.

CASTRATING TOOL.

(Applicatiomfllad July 17, 1900, {No Model.)

- I" [III to the animal and operator.

UNITED STATES PATENT OFFICE.

GEORGE W. WOOTAN, OF OLA, IDAHO.

CASTRATI NG-TOOL.

SPECIFICATION forming part of Letters Iatent No. 672,997, dated April 30, 1901.

Application filed July 1'7, 1900. Serial No. 23,933- (No model.)

To all whom it may concern.-

Be it known that I, GEORGE W. WOOTAN, a citizen of the United States, residing at Ola, in the county'of Boise and State of Idaho, have invented certain new and useful Improvements in Veterinary Surgical Instruments; and I do hereby declare the following to be a full,clear,and exact description of the invention, such'as will enable others skilled in the art to which it appertains to make and use the same.

This invention aims to facilitate the work of the gelderand lessen the attendant danger In this construction the instrument comprises jaws for taking hold of the part to be removed and separating the venereal cord by a contused out which prevents hemorrhage, aknife for gaining access to the part to be extracted, and a pair of shears for clipping and earmarking,whereby the operation of marking and castrating can be quickly performed without requiring the operator to change instruments or lay down one instrument and pick up another.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of the invention are necessarily susceptible of modification, 'still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 isa perspective view of an instrument specially designed for attaining the objects of the invention. Fig. 2 is a top plan view. Fig. 3 is a side elevation.

Corresponding and like parts are referred to in thefollowing description and indicated in all the views of thedrawings by the same reference characters.

The instrument comprises pivoted members 1 and 2, having their forward ends oppositely curved, as shown at 3, and extending forwardly, as shown at 4., and terminating in curved jaws 5, which are somewhat blunted to efiect the separation of the cord by a contused cut. of the jaws 5 with the body portion of the respective members to strengthen the said Braces 6 connect the outer ends jaws and enable them to be made of a minimum amount of metal. The pivot-fastening 7, connecting the members 1 and 2, is extended at one end, as shown at 8, and shearblades 9 are mounted thereon to extend forwardly and are spaced laterally from the corresponding end portions 3 of the said members. Arch-shaped connections 10 connect the points or front ends'of the shear-blades 9 with the contiguous ends of the jaws 5,whereby said blades are operated upon pressing the rear ends of the members 1 and 2 together. By having the shear-blades spaced laterally from the forward ends 3 of the pivoted members and terminating a short distance in the rear of the adjacent ends of the jaws5 they are enabled to operate independently of the jaws without interference therewith and the jaws can be used without interference with their operation by the shear-blades. A spring 11 is interposed between the rear ends of the members 1 and 2 to hold them separated and the jaws 5 and the shear-blades 9 open. This spring may be of any form and disposition so long as it subserves the desired purpose.

It will be observed that the rear ends of the members 1 and 2 constitute handles for the jaws 5 and the shear-blades 9, and the part 8 is common to the two sets of pivoted elements. This disposition of the parts results in a simple and compact construction and in v the provision of an instrument combining parts closely allied, so that either can be used independently of the other and for different operations upon the same part or upon different parts without requiring the operator to change instruments.

One of the members, as 2, has its rear end portion formed into a loop 12 to receive several fingers of the hand, thereby enabling the operator to secure a firm grip upon the instrument and at the same time leaving the thumb of the hand holding the instrumentfree to be used in the operation, which is desirable, as will be readily appreciated. A knife-blade 13 is also formed with the member 2 and is located in advance of the looped portion 12 and in the rear of the pivot-fastening 8. This knife-blade is used preliminarily to the operation of the jaws.5 and opens the way for access to the part to be removed by the subsequent use of the jaws. After the part has been opened it is not necessary for the operator to lay down the knife and pick up a different instrument for extracting the part after exposure; but by having the knife and jaws in one instrument the two operations can be successively performed with such despatch as to diminish the resultant danger and with perfect safety and cleanliness to the operator.

The jaws have their inner or biting edges formed to approximate the shape of the human teeth and operate in a similar manner, the parts to be removed being grasped thereby and extracted in the usual way, as practiced by the human teeth.

Fenders a project forwardly from the jaws and are spring-fingers adapted to yield in the plane of motion to the jaws. These fenders pick up the sack and raise it as the jaws of the instrument advance to a position to take hold of the parts. They also serve to prevent the jaws catching the sack when closing upon the parts to be extracted.

Having thus described the invention, what is claimed as new is 1. In an instrument of the character described, pivoted members terminating at their front ends in jaws,shear blades mounted upon the same pivot-fastening connecting the members and spaced transversely therefrom, and connections between the outer terminals of the shear-blades independently and the adjacent ends of corresponding jaws of the pivoted members, substantially as set forth.

2. In an instrument of the character described, pivoted members terminating at their front ends in jaws, shear-blades mou nted upon the same pivot-fastening connecting the said tion between the said loop and pivot widened and formed intoa knife-blade, as and for the purpose set forth.

'4. The herein-described veterinary surgical instrument comprising pivoted members normally held separated by an interposed spring and provided at their front ends with laterally-curved jaws, one of said members being provided with a knife-blade, shear-blades mounted upon the same pivot-fastening connectingthe members, and oppositely-disposed arched connections between the outer ends of the shear-blades and the adjacent ends of the laterally-curved jaws, substantially as set forth.

5. In aveterinary surgical instrument, pivoted members comprising jaws, and fenders projected outwardly from each of the said jaws, substantially as described.

6. In a veterinary surgical instrument, pivoted members comprising jaws, and springfingers projected outwardly from the said jaws, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. WOOTAN. [L. 5.] Witnesses:

S. O. BADLEY, EDWIN BADLEY. 

